[GRASS-user] v.net.path problem (not the shortest route)

[Jorge de Jesus]

 Hi to all

As usual it was something simple that I've missed :-) .... and of course
v.net.path (in GRASS70) was correct

v.clean in=graph out=graph_clean tool=break,rmdupl 

did the trick to fix the graph and put everything in order (even the cat
field was missing)

The graph was actually prepared in QGIS, and I should have imported it
into GRASS and check the graph

THANKS, I own you a beer

Jorge








On 19/08/11 10:29, Markus Metz wrote:
> On Fri, Aug 19, 2011 at 11:16 AM, Jorge de Jesus <jmdj at pml.ac.uk> wrote:
>>  Hi to all
>>
>> I've a question concerning v.net.path. I am probably missing something
>> obvious :-[
>>
>> In the v.net.path example that I've posted yesterday
>> (http://rsg.pml.ac.uk/wps/example/index.html), if we put the car over
>> madrid and the destination in the node below Santa Maria (below Porto
>> city), the v.net.path uses a different route going thru Vigo. Therefore
>> picking a route that isnt the shortest.
> There were problems with the v.net.* modules in GRASS 6.4.0, maybe
> also in 6.4.1. The v.net.* modules should be working correctly in
> 6.4.2, 6.5, and 7. Just in case you're using an older version of
> GRASS.
>
> Can you post 1) the full v.net command used to prepare the network, 2)
> the output of v.net op=report, 3) the full v.net.path command? This
> information should help to track down the problem.
>
> Markus M


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